Namaz-e-Kas00f is offered when………. Namaz-e-Istasqa is a prayer for……Rain
Top 5 Essays on Earthquakes Geography Article shared by: An earthquake is a major demonstration of the power of the tectonic forces caused by endogenetic thermal conditions of the interior of the earth.
The number indicating magnitude or intensity M on Richter scale ranges between 0 and 9 but in fact the scale has no upper limit of number because it is a logarithmic scale.
It is estimated that the total annual energy released by all earthquakes is about ergs, most of this is from a small number of earthquakes of magnitude over 7.
The Bihar earthquake measuring 8. The place of the origin of an earthquake is called focus which is always hidden inside the earth but its depth varies from place to place. The science, that deals with the seismic waves, is called seismology.
Volcanic activity is considered to be one of the major causes of earthquakes. In fact, vulcanicity and seismic events are so intimately related to each other that they become cause and effect for each other. In other words, each volcanic eruption is followed by earthquakes and many of the severe earthquakes cause volcanic eruptions.
The explosive violent gases during the process of vulcanicity try to escape upward and hence they push the crustal surface from below with great force and thus is caused severe earth tremor of high magnitude.
It may be pointed out that the magnitude of such earthquakes depends upon the intensity of volcanic eruptions. The violent eruption of Krakatoa volcano between Java and Sumatra caused such a severe earthquake the impact of which was experienced as far away as Cape Horn some 12, km away.
Faulting and Elastic Rebound Theory: In fact, sudden dislocation of rock blocks caused by both tensile and compressive forces triggers immediate earth tremors due to sudden maladjustment of rock blocks. Underground active fault zone was suggested as one of the possible causes of Koyna earthquake Maharashtra of December 11, The stretching and pulling of crustal rocks due to tensile forces is slow process.
The rocks continue to be stretched so long as the tensile forces do not exceed the elasticity of the rocks but as the tensile forces exceed the rocks elasticity, they are broken and the broken rock blocks try immediately to occupy their previous positions so that they may adjust themselves.
All these processes occur so rapidly that the equilibrium of the concerned crustal surface is suddenly disturbed and hence earth tremors are caused.
The famous earthquake of of California was caused due to creation of a massive fault in the Oven Valley. Similarly, the Californian earthquake of April 18,was caused due to the formation of km long San Andreas Fault.
The earthquake of Sagami Bay of Japan was also believed to have been triggered by big fault.Volcano Disaster Statistics Data () Average number of volcanic eruptions per year 35 No of people killed by volcanos since 27, Average number of people killed per year by Skip to content.
Posted in Geographic Tagged Fatalities, Number of. PREV DATA SET: NEXT DATA SET. Statistic Sources & References.
Fukuoka | Japan Fukuoka | Japan. The volcanic eruption in Cameroon on August 24, claimed a total of 1, deaths.
Volcanic eruptions - death toll worldwide up to ; Number of fatalities due to major forest. New study analyzes volcanic fatalities in more detail than ever before. Between and more than , people met their fate as a result of volcanic hazards — on average that’s about people a year.
updated previous databases of volcanic fatalities by correcting data, adding events and, crucially, now including. As a follow-up to Tuesday’s post about the majority-minority public schools in Oslo, the following brief account reports the latest statistics on the cultural enrichment of schools in Austria.
Vienna is the most fully enriched location, and seems to be in roughly the same situation as Oslo. Many thanks to Hermes for the translation from vetconnexx.com Human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environments and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans, including global warming, environmental degradation (such as ocean acidification), mass extinction and biodiversity loss, ecological crisis, and ecological collapse.